package collection;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

public class ListDemo {
    public static void main(String[] args) {
        List<String>list=new LinkedList<>();
        list.add("one");
        list.add("two");
        list.add("three");
        list.add("four");
        list.add("five");
        System.out.println("list:"+list);

        String e=list.get(2);
        System.out.println(e);
        for (int i = 0; i < list.size(); i++) {
            System.out.println(list.get(i));
        }

        Iterator<String> it=list.iterator();
        while (it.hasNext()){
            System.out.println(it.next());
        }
        for (String s:list){
            System.out.println(s);
        }
        System.out.println("*************");

        String old=list.set(3,"aaa");
        System.out.println("list:"+list);
        System.out.println(old);

        String remove=list.remove(3);
        System.out.println("list:"+list);
        System.out.println(remove);

        list.add(4,"bbb");
        System.out.println("list:"+list);
    }
}
